NCIt definition : Cytokine Receptor Genes encode cell surface Cytokine Receptors that bind paracrine
or autocrine cytokine growth factors that stimulate humoral and cellular immune responses,
as well as activation of phagocytic cells. Cytokines are secreted by inflammatory
leukocytes (lymphokines), by monocytes or macrophages (monokines), and by various
other cells. Interleukin lymphokines, targeted to cells of hematopoietic origin, are
not secreted by leukocytes but affect the cellular responses of leukocytes. (NCI);